AP PSYCHOLOGY

Detailed explanation-1: -Operational definition. a description of the specific procedure used to determine the presence of a variable. Experimenter bias. a phenomenon that occurs when a researcher’s expectations or preferences about the outcome of a study influence the results obtained. Demand characteristics.

Detailed explanation-2: -Replicability is a subtle and nuanced topic, especially when discussed broadly across scientific and engineering research. An attempt by a second researcher to replicate a previous study is an effort to determine whether applying the same methods to the same scientific question produces similar results.

Detailed explanation-3: -Experimental research, often called true experimentation, uses the scientific method to establish the cause-effect relationship among a group of variables that make up a study.

Detailed explanation-4: -Measured Operational Definition: Operations by which investigators may measure a concept. Experimental Operational Definition: Steps taken by a researcher to produce certain experimental conditions.

Detailed explanation-5: -An operational definition should identify how the variable is calculated or recorded as a numeric value. In addition, the operational definition should specify the range of possible values and the variable’s level of measurement (nominal, ordinal, or interval).